package com.ning;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/*
@李子宁
Happy,happy everyday!
冲鸭！
2021/3/25

*/
public class test {
    public static void main(String[] args) {
        List<String> list = new ArrayList<>();
        list.add("heeloi");
        List<String> all = getAll();
        if (all != null){
            list.addAll(all);
        }
        System.out.println(list);
    }
    public static List<String> getAll(){
        return null;
    }
}
